Properties

Label 79.3.3.6a1.3
Base \(\Q_{79}\)
Degree \(9\)
e \(3\)
f \(3\)
c \(6\)
Galois group $C_3^2$ (as 9T2)

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Defining polynomial

Copy content comment:Define the p-adic field
 
Copy content sage:Prec = 100 # Default precision of 100 Q79 = Qp(79, Prec); x = polygen(QQ) L.<t> = Q79.extension(x^3 + 9*x + 76) K.<a> = L.extension(x^3 + 79)
 
Copy content magma:Prec := 100; // Default precision of 100 Q79 := pAdicField(79, Prec); K := LocalField(Q79, Polynomial(Q79, [439055, 155952, 18468, 18057, 4104, 243, 228, 27, 0, 1]));
 

$( x^{3} + 9 x + 76 )^{3} + 79$ Copy content Toggle raw display

Copy content comment:Defining polynomial
 
Copy content sage:K.defining_polynomial()
 
Copy content magma:DefiningPolynomial(K);
 

Invariants

Base field: $\Q_{79}$
Copy content comment:Base field Qp
 
Copy content sage:K.base()
 
Copy content magma:Q79;
 
Degree $d$: $9$
Copy content comment:Degree over Qp
 
Copy content sage:K.absolute_degree()
 
Copy content magma:Degree(K);
 
Ramification index $e$:$3$
Copy content comment:Ramification index
 
Copy content sage:K.absolute_e()
 
Copy content magma:RamificationIndex(K);
 
Residue field degree $f$:$3$
Copy content comment:Residue field degree (Inertia degree)
 
Copy content sage:K.absolute_f()
 
Copy content magma:InertiaDegree(K);
 
Discriminant exponent $c$:$6$
Copy content comment:Discriminant exponent
 
Copy content magma:Valuation(Discriminant(K));
 
Discriminant root field:$\Q_{79}$
Root number: $1$
$\Aut(K/\Q_{79})$ $=$ $\Gal(K/\Q_{79})$: $C_3^2$
This field is Galois and abelian over $\Q_{79}.$
Visible Artin slopes:$[\ ]$
Visible Swan slopes:$[\ ]$
Means:$\langle\ \rangle$
Rams:$(\ )$
Jump set:undefined
Roots of unity:$493038 = (79^{ 3 } - 1)$
Copy content comment:Roots of unity
 
Copy content sage:len(K.roots_of_unity())
 

Intermediate fields

79.3.1.0a1.1, 79.1.3.2a1.1, 79.1.3.2a1.2, 79.1.3.2a1.3

Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.

Canonical tower

Unramified subfield:79.3.1.0a1.1 $\cong \Q_{79}(t)$ where $t$ is a root of \( x^{3} + 9 x + 76 \) Copy content Toggle raw display
Copy content comment:Maximal unramified subextension
 
Copy content sage:K.maximal_unramified_subextension()
 
Relative Eisenstein polynomial: \( x^{3} + 79 \) $\ \in\Q_{79}(t)[x]$ Copy content Toggle raw display

Ramification polygon

Residual polynomials:$z^2 + 3 z + 3$
Associated inertia:$1$
Indices of inseparability:$[0]$

Invariants of the Galois closure

Galois degree: $9$
Galois group: $C_3^2$ (as 9T2)
Inertia group: Intransitive group isomorphic to $C_3$
Wild inertia group: $C_1$
Galois unramified degree: $3$
Galois tame degree: $3$
Galois Artin slopes: $[\ ]$
Galois Swan slopes: $[\ ]$
Galois mean slope: $0.6666666666666666$
Galois splitting model:not computed